body {
    min-width: 320px;
    max-width: 750px;
    margin: 0 auto;
    height: 1200px;
}
@media screen and (min-width:750px) {
    html {
        font-size:37.5px !important;
    }
}
// 头部
header {
    height: 2.5867rem;
    line-height: 2.5867rem;
    border-bottom: .0267rem #eaeaea solid;
    font-size: .9333rem;
    font-family: Microsoft YaHei, Microsoft YaHei-Regular;
    font-weight: 400;
    color: #1c1c1c;
    text-align: center;
}
nav {
    margin-top: 1.1733rem;
    padding-left: 1.7867rem;
    padding-right: 1.92rem;
    margin-bottom: 1.6rem;
    height: 10.96rem;
    width: 16.2933rem;
    display: flex;
    flex-flow: row wrap;
    justify-content: space-between;


    a {
        width: 2.88rem;
        height: 4.5867rem;
        margin-right: 3.82rem;
        float: left;
        text-decoration: none;
        display: flex;
        flex-flow: column ;
        align-items: center;
        img {
            width: 2.88rem;
            height: 2.88rem;
        }
        p {
            font-size: .6667rem;
                font-weight: normal;
                font-stretch: normal;
                line-height: .72rem;
                letter-spacing: .0267rem;
                color: #707070;
        }

    }

}
.logo {
    padding-left: .48rem;
    padding-right: .2667rem;
    width: 19.2533rem;
    height: 4.0533rem;
    background: url(../images/go.png) no-repeat center;
    margin-bottom: 1.1467rem;
}
.limit {
    height: .2667rem;
    background-color: #f2f4f7;
}
section {
    height: 15.3333rem;
    width: 20rem;
    .join_work {
        width: 18.8rem;
        height: 1.0667rem;
        line-height: 1.0667rem;
        margin-bottom: .8533rem;
        padding-top: 1.0667rem;
        
        img {
            width: 1.0133rem;
            height: 1.0133rem;
            float: left;
        }
        h4 {
            font-family: MicrosoftYaHei-Bold;
                font-size: .7467rem;
                font-weight: normal;
                font-stretch: normal;
                line-height: .72rem;
                letter-spacing: 0rem;
                color: #333333;
                margin-left: .48rem;
                float: left;
                margin-bottom: 0;
                margin-top: 0;
        }
        span {
            float: right;
            font-family: MicrosoftYaHei;
                font-size: .5867rem;
                font-weight: normal;
                font-stretch: normal;
                line-height: .72rem;
                letter-spacing: 0rem;
                color: #999999;
        }
    }
    .mian_shi {
        width: 9.0133rem;
        height: 10.0267rem;
        margin-left: 4rem;
        margin-right: 2.6533rem;
        vertical-align: middle;
    }
    .left_arrow,.right_arrow {
        width: .6133rem;
        height: 1.1467rem;
        color: black;
        vertical-align: middle;
        
    }
    .left_arrow {
        padding-left: .9867rem;
    }
 
        
    
}
.change_study {
    height: 12.24rem;
    width: 20rem;
    .title {
        padding-top: .6667rem;
        padding-left: .6133rem;
        margin-bottom: 1.3067rem;
        height: .9867rem;
        line-height: .9867rem;
        
        img {
            width: .9867rem;
            height: .9867rem;
            float: left;
            vertical-align: bottom;
        }
        h4 {
            margin-left: .48rem;
            font-family: MicrosoftYaHei-Bold;
                font-size: .7467rem;
                font-weight: normal;
                font-stretch: normal;
                line-height: .72rem;
                letter-spacing: 0rem;
                color: #333333;
                float: left;
                margin-top: 0;
                margin-bottom: 0;
                
        }
        span {
            float: right;
            font-family: MicrosoftYaHei;
                font-size: .5867rem;
                font-weight: normal;
                font-stretch: normal;
                line-height: .72rem;
                letter-spacing: 0rem;
                color: #999999;
        }
    }
    a {
        text-decoration: none;
        width: 7.6533rem;
        height: 8.8533rem;
        display: inline-block;
        box-shadow: 1px 1px 1px 1px whitesmoke inset;
        margin-left: .6133rem;
        box-sizing: border-box;
        img {
            width: 7.2533rem;
            height: 4.56rem;
        }
        p {
            color: black;
            font-size: .6667rem;
            margin-left: .1333rem;
        }
        i {
            font-family: ArialMT;
            margin-left: .1333rem;
                font-size: .6933rem;
                font-weight: normal;
                font-stretch: normal;
                line-height: .72rem;
                letter-spacing: 0rem;
                color: #ff4400;
        }
        span {
            font-family: MicrosoftYaHei;
                font-size: .6133rem;
                font-weight: normal;
                letter-spacing: 0rem;
                color: #999999;
        }
    }
}
footer {
    height: 3.0133rem;
    position: fixed;
    bottom: 0;
    display: flex;
    justify-content: space-between;
    background-color: white;
    a {
        width: 5rem;
        height: 3.0133rem;
        display: flex;
        flex-flow: column;
        align-items: center;
        text-decoration: none;
        
        img {
            width: 1.04rem;
            height: 1.0933rem;
            margin-bottom: .2933rem;
            margin-top: .64rem;
        }
        span {
            font-size: .5867rem;
                font-family: Microsoft YaHei, Microsoft YaHei-Regular;
                font-weight: 400;
                color: #666666;
        }
    }
}